A small hiatus hernia with a lax lower oesophageal sphincter at 14 does not need surgery. His burping, regurgitation and cramps are reflux from that loose valve, and it responds well to medicines plus posture and diet changes. Omeprazole or pantoprazole before breakfast for 6-8 weeks, small frequent meals, no lying down for 2-3 hours after eating, head end of the bed raised, and cutting out fried food, colas and late dinners usually settles it. Surgery comes into the picture only if reflux stays severe despite full treatment, or if he develops difficulty swallowing, food sticking, vomiting blood, black stools or weight loss - those need urgent review.
Next Steps
Start the acid-suppressing tablet with anti-reflux measures for 6-8 weeks and review; you can share the endoscopy report with me on a Practo consult or at Synergy Multispeciality Hospital, Miraj and I will plan his medicines properly.